uint32_t path_from_object_attributes(const OBJECT_ATTRIBUTES *obj,
wchar_t *path, uint32_t buffer_length)
{
uint32_t copylen;
if (obj->ObjectName == NULL || obj->ObjectName->Buffer == NULL) {
return path_from_handle(obj->RootDirectory, path, buffer_length);;
}
// ObjectName->Length is actually the size in bytes.
uint32_t obj_length = obj->ObjectName->Length / sizeof(wchar_t);
copylen = min(obj_length, buffer_length - 1);
if(obj->RootDirectory == NULL) {
memcpy(path, obj->ObjectName->Buffer, copylen * sizeof(wchar_t));
path[copylen] = L'\0';
return copylen;
}
uint32_t length = path_from_handle(obj->RootDirectory,
path, buffer_length);
path[length++] = L'\\';
if (length >= (buffer_length - 1))
copylen = 0;
else
copylen = buffer_length - 1 - length;
copylen = min(copylen, obj_length);
memcpy(&path[length], obj->ObjectName->Buffer, copylen * sizeof(wchar_t));
path[length + copylen] = L'\0';
return length + copylen;
}
uint32_t path_from_object_attributes(const OBJECT_ATTRIBUTES *obj,
wchar_t *path, uint32_t buffer_length)
{
if(obj->ObjectName == NULL || obj->ObjectName->Buffer == NULL) {
return 0;
}
// ObjectName->Length is actually the size in bytes.
uint32_t obj_length = obj->ObjectName->Length / sizeof(wchar_t);
if(obj->RootDirectory == NULL) {
wcsncpy(path, obj->ObjectName->Buffer, buffer_length);
return obj_length > buffer_length ? buffer_length : obj_length;
}
uint32_t length = path_from_handle(obj->RootDirectory,
path, buffer_length);
path[length++] = L'\\';
wcsncpy(&path[length], obj->ObjectName->Buffer, buffer_length - length);
length += obj_length;
return length > buffer_length ? buffer_length : length;
}
